Feeding attachment for printing presses



Jan. 23, 19230 1,442,991 1. BIVER ET AL.

FEEDING ATTACHMENT FOR PRINTING PRESSES.

FILED SEPT- 26.1921. 2 SHEETSSHKET I.

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BM? 7 s M W h "WI UW l wfemiamgo JUL /u5 15 IVER doH/v aims? rmqys Jan" 23, 1923;

J. BIVER ET AL. FEEDlNG ATTACHMENT FOB PRINTING PRESSES.

2 SHEETS=-SHEET 2.

FILED SEPT. 26,1921.

T m T .L; T, T v 1.. Vlllllllll'llll lll lL-lll III m v a Patented den i923" JULIUS RIVER, OF ALMJIEDA, AND JOHN S. KOSCH, OF SAN BRUNO, CALIFORNIA.

FEEDING ATTACHMENT FOR PRINTING PRESSES.

Application filed September 26, 1921.

To all whom it only concern:

lie it known that we, Juries lhvnu and Jorrn ti. Kosorr, citizens of the United iltates, and lents respectively of Alameda, county Alameda, and San lhiuno, county of San Mateo, and State of California, have invented a new and useful Fee ling; Attachment for Printing Presses, of which the ldllowing is a s iecilication.

The present invention relates to improve meats in printing presses and its object is to provide a feeding attachment for a printing press which can adapt itself to a wide range of different sized objects and which can be easily adjusted to feed folded envelopes of any size as well as lettcrheads or other single sheet units of paper. lhe present press as now commonly used for the printing of en velopes has a feeding attachment adapted to handle unfolded envelopes only, the attachment consisting of a pair of horizontally spaced slides on which the bundles of un- :l;'olded envelopes rest so that the latter stand on edge, the body portion resting on the slides while the flaps extend downwardly between the slides and prevent the envelopes from moving laterally.

.l..hese slides cannot successfully be used for folded envelopes because the latter need. a more substantial support to keep them alined and to prevent them from becoming dislocated laterally, and our attachment is designed with a view of accommodating' those envelopes. lts advantages naturally extend to any units to be printed having; a regular square or rectangular form which are little adapted to vbe satisfactorily supported on two flat slides.

The preferred form of our attachment is illustrated in the accompanying drawing, it being understood that slight changes on modifications might be made without deviat- F om the spirit of the invention. in the drawingrs lligure represents a pers iective viewof the attachment; Figure 2 a perspec tive view of one of the two wings: forming the principal feature of the invention; Fig;- ure atop plan view of the other wing; Figure 4-. an enlarged detail view of a separating pin: Figure 5 a front elevation of the upper portion of the attachment, Figure 6 a receiving device for the discharged onvelopes and Figure 7 a perspective bottom view of a pusher used to bring the envelopes into co-ntactwith the gripping device of the press.

Serial No. 503,196.

Referring to the drawings in detail it will be seen that our attachment comprises two wings (1), angle shaped, each having one flange 2) extending upwardly in spaced relation to the corresponding flange of the other, and one flange (3) extending; horizontally toward the corresponding flange of the other. 'lhese flanges are supported on the slides l-l The latter, which are a portion of the present day machine, are supported by roeans of sleeves (6) on the rods ('5) and prevented from rotating on the same by the setscrews (8). The rods are rotatably supported on two arms rigidly secured to the rod (1.1) ro-tatably carried in the bearings. (12) of rigid supporting members (i l) :lorming: part of the frame of the press not SllOWllin the drawing. secured thereto sleeves (l6) rotatably supported on the rods (7) and provided with transverse sleeves (17) forming a rigid unit with the same. It will thus be seen that the two slides are adjustable relative to their distance from each other and can be swung away from or toward each other through the arms In the presentday press they are normally in a horizontal position so to present their sliding faces on top bya rod (not shown in the drawing) extending); tl'iroup h the transverse sleeves The rods: (7) are prevented from sliding longi tudinally by the collars Touse our attachment we rotate the slides a quarter of a turn so that the sliding surfaces face each other and they are held in this position by two vertical rods (Ell) e):- tendingr through the sleeves 17) and held against rotary motion by the horizontal rod (22) which is slidably supported in the lower ends of the rods (21) the latter being held in the sleeves (17) by means of setscrews i The wings are seemed to the Slit meausof sn'ews and. can thusl away from each other or toward owl). other at will without changing the direction of its flanges, the arms permitting of lateral movement and the rods (2].) holdirurthe flanges in their vertical and horizontal positions without interfering with the lateral movement The wings are'provided vat their rear ends with corresponding notches through which the separator pins (2?) extend adaptcol-to engage the units to .be fed intothe press and to vallow the same toi be removed one by The slideshave also rigidly one. They are secured to the outside of the slides by being pressed between the head (28) of the bolt (29) and the sleeve (31) supported in a lug (32) extending from each slide, a wing nut being used to bring the bolt head and the sleeve in firm contact with the separator pin.

It will be noticed from Figure 3 that the inner edges of the horizontal flanges are cut away as shown at (3-1). This is done in order to prevent any collision between the attachment and the gripping apparatus of the particular machine for which this attachment was designed.

To forward the units to be fed into the machine we use the adjustable pusher shown in. detail in Figure 7. It comprises a slide (36) secured between the lower side of one flange (37) of the angle-shaped pusher (3S) and two strips screwed to the flange. The other flange presses against the envelopes and held under con inuous forward tension by the cord wound around the transverse shaft and provided at its free end with a. weight (M). The shaft receives intermittent rotary motion from the machine in a manner not shown and at each motion exerts a slight pull on the cord (42), whereby the pusher is urged forward continuously. The slide (36) rests on the horizontal flanges. and we provide a plurality of slides of different sizes which may be interchangeably used to conform to the width of the spare between the wings.

A. leaf spring (46) is secured above the envelopes to hold the same down and is pivotally supported on the free end (47) of the arm (48), the other end of which is tened to the plate (49) being part of the frame of the machine by the thumb screw (51) so that the height of the spring can be adjusted.

To catch the envelopes as they emanate from the discharge end of the machine we provide two posts (52) on the base against which the envelopes are placed by the discharging device of the machine not shown in the drawing and two guides (54.) depending from a transverse shaft (56) supported in the machine extending along side the envelopes.

In operation a bunch of envelopes is placed on the horizontal flanges of the wings as shown in dotted lines in Figure 1, after the wings have been usted properly. The machine is provided with a gripping device not shown in the drawing which enables it .p the envelopes one by one, the reng ones being held back by the sepa- The pusher is worked. forwardl raters. I by the shaft (43) under the influence oi the we ght and slightly advances the bunch of envelopes eaehwtnne one is taken up by the gripping device, The spring (46) lying ontop of the envelopes presses down on the same and prevents the same from rising; under the pressure and keeps them well arranged. At the discharge end the envelopes are placed by the discharge device against the rods (52). being prevented from sliding laterally by the grinder lVe claim:

1. A feeding attachment for a printing press, comprising a pair of angle-shaped wings toeing toward each other supported in operative proximity to a grippiing' device adapted to hold the material to be fed, a notch in the rear end of the heel of arch wings; and a pin associated with the wing r.\:- tending; through the notch to operativclv engage the material so as to allow the same to be withdrawn one at a time.

2. A. feeding attachment; for a printing! press. comprising a pair of angle-shaped wings toeine; toward each other supporied in operative proximity to a gripping de vice adapted to hold the vrial to be fed and a notch in the rear end of he too of e-u'h wing for the admission of said gripping device.

A feeding attachment for a printing.- press, comprising a pair of angle-shaped wings toeing toward each other supported in operative proximity to a gripping device adapted to hold the material to be fed. and means supported on the wings for exerting; forward pressure on the material. said means comprising; a slide supported on the toes of the wine, a pusher secured thereon. an intermittently rotating: shaft, and a cord secured to the pusher and wound around the shafthaving a weight at its free end whereby a slight intermittent forward motion imparted to the pusher.

4;. ln cmnhination. a feeding uttm-h nonl for a printing press wnnprieinp a pair ol' wings supported in onernlive proximity to a gripping device adapted 21'.) hold the m1- tcrial to be fed and a receiving' attarlnncnl supported in operative 1n'oxi1n" to the dis charge end of the press comprising; vertical members for supportinn' the lischrirgre l units and lateral members for guiding the Fllllllh 5. ii l'emlingr attiu-lunent fol a printing! press comprising!" a. pair of :in -'lc-sh: ,wd toeii toward each other and nnfunr-i t e same in :idiustahlv V in oi ative proximity to a i ping devi 7 inn aliorinoutal rod r each wing. arms pivoting: thereon pivot all engaging; said win for lateral adjust meet. a ertical gu de rod slidably ennu inc; czuh wing. and a horizontal gu de rod slidablv engaging: the two vertical gui e rods for maintainingthe same in parallel relation.

s iiacrd relatio JULIUS RIVER. JOHN S. I'ZOSCH. 

